Dynamic s3 prefix in s3 trigger for Lambda Function

Thanks Riku. Appreciate your help. What about the dynamic date arguments in the s3 prefix ?

Lambda is executed when an object is created in the folder "s3://mybucket/hostData/yyyyy/mm/dd/hh/mm". When the Lambda is executed, the message is passed to the Lambda handler as an "event". The message contains S3 folder information. The sample code shows that the object key is obtained by "key = urllib.parse.unquote_plus(event['Records'][0]['s3']['object']['key'], encoding='utf-8')".

import json
import urllib.parse
import boto3

print('Loading function')

s3 = boto3.client('s3')


def lambda_handler(event, context):
    #print("Received event: " + json.dumps(event, indent=2))

    # Get the object from the event and show its content type
    bucket = event['Records'][0]['s3']['bucket']['name']
    key = urllib.parse.unquote_plus(event['Records'][0]['s3']['object']['key'], encoding='utf-8')
    try:
        response = s3.get_object(Bucket=bucket, Key=key)
        print("CONTENT TYPE: " + response['ContentType'])
        return response['ContentType']
    except Exception as e:
        print(e)
        print('Error getting object {} from bucket {}. Make sure they exist and your bucket is in the same region as this function.'.format(key, bucket))
        raise e

Thanks a lot Riku. I am able to invoke the API via Lambda.